Type

Journal Article

Authors

Qiang wu
Yuliya Semenova
Gerald Farrell
Tuan Guo
Xing Ao Li
Huazhong Shu
Chongxiu Yu
Jinhui Yuan
Khamid Mahkmov
Christopher Underwood
and 8 others

Subjects

Physics

Topics
singlemode multimode singlemode heat pumps solid liquid phase change materials pcms spacecraft thermal control solar engineering physics optical fibre sensor phase transition

Singlemode-multimode-singlemode fibre structure for phase transition monitoring in phase changing materials (2018)

Abstract Abstract. A platinum-coated singlemode-multimode structure is investigated in this paper as an optical fibre sensor (OFS) to monitor the phase transition of a phase change material (PCM). Paraffin wax has been used as an example to demonstrate the sensor’s performance and operation. Most materials have the same temperature but different thermal energy levels during the phase change process, therefore, sole dependency on temperature measurement may lead to an incorrect estimation of the stored energy in PCM. The output spectrum of the reflected light from the OFS is very sensitive to the bend introduced by the PCM where both liquid and solid states exist during the phase transition. The measurement of strain experienced by the OFS during the phase change of the PCM is utilized for identifying the phase transition of paraffin wax between the solid and liquid states. The experimental results presented in this paper show that the OFS can measure the phase change point of paraffin wax and the sensor with a multimode fibre length of 10 mm measured the phase transition temperature range from 37.8 ºC to 57.7 ºC.
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Full list of authors on original publication

Qiang wu, Yuliya Semenova, Gerald Farrell, Tuan Guo, Xing Ao Li, Huazhong Shu, Chongxiu Yu, Jinhui Yuan, Khamid Mahkmov, Christopher Underwood and 8 others

Experts in our system

1
Qiang wu
TU Dublin
Total Publications: 90
 
2
Yuliya Semenova
TU Dublin
Total Publications: 136
 
3
Gerald Farrell
TU Dublin
Total Publications: 212
 
4
Chongxiu Yu
TU Dublin
Total Publications: 26
 
5
Jinhui Yuan
TU Dublin
Total Publications: 24